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- Master (Oceans or Near Coastal (Uninspected Fishing Industry Vessel)) »
- Q183 - Navigation General: Oceans
241. When using a mechanical (windup type) marine chronometer, how often should it be reset?
A mechanical marine chronometer should only be reset when it is taken out of service for overhaul; resetting disrupts error records and introduces new errors, and navigators instead record and apply corrections based on the chronometer's known error and rate.
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